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-rw-r--r--checker/environ.ml1
1 files changed, 1 insertions, 0 deletions
diff --git a/checker/environ.ml b/checker/environ.ml
index 99b364579..d0b0b4ce9 100644
--- a/checker/environ.ml
+++ b/checker/environ.ml
@@ -1,3 +1,4 @@
+open Errors
open Util
open Names
open Univ